Head-motion for concentrators



. Sept. 2, 1930. L. E. SPEAR HEAD MOTION FOR CONGENTRATORS OriginalFiledquly 19, 1927 semedjsepi; 1

I i cations V V a V Figure 1 is a plan of the concentratorshowing'thishead motion and is partly broken The numeral 1 indicates HE .mmronimsscsdnnmrdnsp f Y '1 i V This invention relates to improvements inhead motion for concentrators.

Itis understood by those skilled in the art ject is to provide a machineofstrongcon struction and simpleindesignh p Other objects of theinvention will be apparent as the description proceeds.

drawings and o "tratorlshown-in Figure 1.

post, which is braced'by the timber 5; this brace is held in place at:the bottom by bolts 6' and? to the cross timber by the bolt 8 to postf3, and'at the top of bearings ,12 and? 18, the bearing 12 being 1 isupported on projectingmember 14 which isbolted to the brace 5 by meansof bolts 15.

- which'hasthe rod 17, which passes through a hole in the transverseangle, iron'l8,' which i is bolted to the concentrator-table head 19bymeans of bolts 20.

4 Springs 21 and 22 on 1 Figure 2 is'a side elevation of thelconcenfthebottom timbers memberwhich may be termed the resisting I The post 9supports the member 10; t 5 Av shaft'll is mounted on the: frameby meansi H to give the requ red endthrust take up'an'd; r;

j The bearing 18 is bolted to the member 10.. Fixed tothe shaftll'istheeccentric f16i eac hside oftheangle. ",iron are held inadj'ustable'tension by the Spanning the'spacebetween thehead 19material, it"may 'in 'fact be flexible M wire 'b ,b ut* in this'i'n'stancefabelt of some by 'the" w sh resqci the 1061 s1, The belt has"less slaclrwhen; the eccentric is SP o ,o V wayf its length by means ofthe clamps *is applied a; the sprin "by. the bell crank f stened, thebell crank lever being pivoted the movement of. the bellcrank; I

l Threads47 and'a nut 48 with a handl provided for adjusting the spring.

1 An embodimentof the invention isshown,I and361andhookbo1t37, andnut38. Tension in the accompanying drawing in" which the" Same" referencenumeral is applied to the same portion throughout the several figures ofthe 1; f whichthere maybe modifi-fl "igshowm' which' isfastenedjfto'the' top Y i *"brac figbya late ez and:bOLtsQSLandiQQI andto. the head' by bolts180and-{81fthg end" ofthestrapbeing-loop'ed backat32 and held {lever 39 to which the lower end ofthe spring, i I

of the bolts 44 and 45; slots 46 in the bracket; 7' I 4 allow a littlemovementthereof toallowfor 5 eare q -Spring supports 49 and 50 supportthe! head. These supportsas well as those not shown are awell knownform, and form nois part of the invention;

,In'operation h pulley driven "requiredispeedto cause the eccentrictoyi-I I *brate thehead through'the .rod 17 and springs 21 and 2 2, the nuts24 and 48 being adjusted} retarding effect 7 o I I V o v Having thusdescribed my invention, what I desire'to secure by Letters Patent-of the--United States is as follows, but modifica-itionsmay be made incarryingoutthe inven;

tion as shown in'the drawing and in the above particular form thereof,withinothe purview'ofthe annexed'claims. "I T i 1. A head motion forconcentrators come port; for said drivingmeans; anda spring 1 Supportand said table} prising a frame with a vibratory table, ar -y I .silientmeans for driving said table, a sup- 0 l7 QWl Jii e-fdra i1i P nid f 0 5the s nt efithejsprifiss n 2 and o j a V injg 34: which is attached to;thebeltf f 1 I p I 1,774,769

25A head motion ,fonconcentratms comprising a frame, a Vibratorytablemounted on said frame, avertical st spaced from a said tabl'eonsaid frameya race member for said post, driving means having a resilientconnecting; means mounted on said post adaptedgto reciprooate saidtable, and an adjustable spring tensioned flexible coupling between saidtable and said post; v 1 f 3. A head motion for concentrators comprisinga frame, a vibratoryconcentratorgvi table mountedonsaid frame,- avertical post spaced from said head onsaid -frame';abraceforsaid pqstaishafb mounted on said 'post,

and bracefame'ccehtrio' on said shaft; a' 'connesting rodon saideccentric adaptedto pass. 'throughmmember on said head, a spring on.each side'of said: member, on saidrod, a icol- 7 Lap and a nut onsaidrod adapted to adjiist v wg the .tensionLOf said springs on said member,Q 1 and an adjustable spring tensioned flexible 'HOSt 7 A. A head motionfor concentrators com-.

,f; 'prising a frame; a vih'rat0ry' concentrator table on said frame,- apost spaced from said table on said frame, driving means Onsaid postadapted toreciprocate said table, a fleiiible, belt having slackadapted'jtojconne'ct -3 .,saic1 post and. said head, andanadjustabh 7spring adapted to take lip-and i'etaina tension on .said beltto take uptheen dflthrilst ofsaid'tablef i I, 5f In testimony Whereof-Iha ehereunto set my hand this Qndday of July, A. D.; 1927. ,o I y, y LEXVISYE. SPEAK.

, connecting link between said 'table' 'andsaid f

